Remove the statement that uses a subselect in the declaration of the cursor
Hi allHow to write write a delete statement that uses a subselect with the declaration of the cursor?
CURSOR excluded_dates IS
SELECT TO_TIMESTAMP(report_parameter_value, in_date_format_mask)
INTO my_current_date_time
FROM report_parameters
WHERE report_parameters.report_parameter_id = in_report_parameter_id
AND report_parameters.report_parameter_group = 'DATE_TIME'
AND report_parameters.report_parameter_name = 'EXCLUDED_DATE'; OPEN excluded_dates;
LOOP
FETCH excluded_dates INTO my_excluded_date;
EXIT WHEN excluded_dates%NOTFOUND;
DELETE FROM edr_rpt_tmp_inclusion_table
WHERE TO_CHAR(date_time, 'mm/dd/yyyy') = TO_CHAR(my_excluded_date, 'mm/dd/yyyy');
END LOOP;
CLOSE excluded_dates;Hello
You can turn your cursor into a subquery IN
DELETE FROM edr_rpt_tmp_inclusion_table
WHERE TRUNC (date_time) IN
(
SELECT TRUNC (TO_TIMESTAMP(report_parameter_value, in_date_format_mask))
-- INTO my_current_date_time -- Remove this line
FROM report_parameters
WHERE report_parameters.report_parameter_id = in_report_parameter_id
AND report_parameters.report_parameter_group = 'DATE_TIME'
AND report_parameters.report_parameter_name = 'EXCLUDED_DATE'
);
I used the TRUNK instead of TO_CHAR, but it works with TO_CHAR.
Published by: Frank Kulash, June 8, 2009 11:28
Remove the "my_current_date_time" line, after Sean and Sanjay (below).
Tags: Database
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Don't not using bind variables can have an impact on the performance of the query itself as well as the performance of the server for everyone use it somewhere else.
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